1
|
Wen G, Feng X, Lin L. Water-enabling strategies for asymmetric catalysis. Org Biomol Chem 2024; 22:2510-2522. [PMID: 38450421 DOI: 10.1039/d3ob02122j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Water possesses unique advantages, including abundance, environmental friendliness and mild effects. Undoubtedly, it is an ideal solvent or reagent in chemical syntheses. Water also shows unique abilities in catalytic asymmetric synthesis. It can accelerate reaction rates, improve diastereo- or enantioselectivities, initiate reactions, diversify chemo, diastereo- or enantioselectivities through various effects (hydrophobic, hydrogen bonding, protonation). Several reviews have demonstrated the positive effects of water in asymmetric synthesis. In this review, we summarize water-enabling strategies in the last decade, and focus on advances which reveal how water affects a reaction.
Collapse
Affiliation(s)
- Gang Wen
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| |
Collapse
|
2
|
Kesavulu G, Balachandra B, Prasad KR. Lithio Tris(methylthio)methane as Hydroxy/Thio/Aminocarbonyl Anion Equivalent: Asymmetric Synthesis of α-Amino Acid Esters, Thioesters, Amides, and Peptides. Org Lett 2023. [PMID: 37406168 DOI: 10.1021/acs.orglett.3c01969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/07/2023]
Abstract
The use of lithio tris(methylthio)methane as a hydroxy/thio/amino carbonyl anion equivalent in the synthesis of α-amino acids is reported. Addition of the reagent to nonracemic sulfinimines furnished the α-sulfinamido trithioformates in excellent diastereoselectivity. Unmasking the trithioformates to diverse functionalities, such as α-amino acid thioesters, esters, anilides, amides, and di/tri peptides, without epimerization of chiral centers was accomplished.
Collapse
Affiliation(s)
- Gangarajulu Kesavulu
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Biguvu Balachandra
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Kavirayani R Prasad
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India
| |
Collapse
|
3
|
Saavedra B, Bermejo-López A, Raeder M, Martín-Matute B. Selective quantitative N-functionalization of unprotected α-amino acids using NHC-Ir(III) catalyst. STAR Protoc 2023; 4:102147. [PMID: 36920910 PMCID: PMC10025274 DOI: 10.1016/j.xpro.2023.102147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/20/2023] [Accepted: 02/10/2023] [Indexed: 03/16/2023] Open
Abstract
Unnatural amino acids are valuable building blocks with numerous applications. Here, we present a quantitative technique for accessing mono-N-functionalized amino acids directly from unprotected substrates using alcohols as alkylating agents and an NHC-Ir(III) catalyst. We detail specific steps for catalyst preparation and application, as well as for catalyst recycling. The protocol excludes a few amino acids (l-cysteine, l-lysine, and l-arginine) and secondary alcohols. For complete details on the use and execution of this protocol, please refer to Bermejo-López et al. (2022).1.
Collapse
Affiliation(s)
- Beatriz Saavedra
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 106 91 Stockholm, Sweden
| | - Aitor Bermejo-López
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 106 91 Stockholm, Sweden
| | - Majken Raeder
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 106 91 Stockholm, Sweden
| | - Belén Martín-Matute
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 106 91 Stockholm, Sweden.
| |
Collapse
|
4
|
Zhao X, Zhang C, Zhang H, Zheng X, Liang J, Liang Q, Lin W. Metal-free photosensitized intermolecular carboimination of alkenes: a green and direct access to both β-amino acids and β-amino ketones. Org Biomol Chem 2022; 20:7593-7598. [PMID: 36128897 DOI: 10.1039/d2ob01474b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
β-Amino carbonyl substructures are privileged motifs in natural products and active pharmaceutical compounds. Here, we report a photoinduced metal-free and highly regioselective intermolecular carboimination method via the simultaneous introduction of amino and carbonyl groups into the CC double bond in one step, providing straightforward, green and general access to both β-amino acid and β-amino ketone motifs from readily available alkene feedstocks. The mild reaction conditions, excellent functional group tolerance and product diversity should make this a broadly applicable carboimination approach of very broad interest to organic and medicinal chemists.
Collapse
Affiliation(s)
- Xingda Zhao
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China.
| | - Cairong Zhang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China.
| | - Hengyue Zhang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China.
| | - Xiaolan Zheng
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China.
| | - Jiayu Liang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China.
| | - Qianqian Liang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China.
| | - Weilong Lin
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China.
| |
Collapse
|
5
|
Selective and quantitative functionalization of unprotected α-amino acids using a recyclable homogeneous catalyst. Chem 2022. [DOI: 10.1016/j.chempr.2022.08.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
6
|
Zhao S, Li K, Sun X, Zha Z, Wang Z. Copper-Catalyzed Stereoselective [4 + 2] Cycloaddition of β,γ-Unsaturated α-Keto Esters and 2-Vinylpyrroles in Water. Org Lett 2022; 24:4224-4228. [PMID: 35678427 DOI: 10.1021/acs.orglett.2c01544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An asymmetric [4 + 2] cycloaddition of β,γ-unsaturated α-keto esters with 2-vinylpyrroles in water was developed under the catalysis of a kind of copper complex with a low loading. A series of optically pure 3,4-dihydro-2H-pyran derivatives could be obtained in excellent yields, with high diastereoselectivities and enantioselectivities. The corresponding mechanism was proposed, which was supported by DFT calculations.
Collapse
Affiliation(s)
- Shuangshuang Zhao
- Hefei National Research Center for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Kuiliang Li
- Hefei National Research Center for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Xiang Sun
- Hefei National Research Center for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Zhenggen Zha
- Hefei National Research Center for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Zhiyong Wang
- Hefei National Research Center for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| |
Collapse
|
7
|
Strekalova S, Kononov A, Budnikova Y. Amino Acids in Electrochemical Metal-Free Benzylic C-H Amidation. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
8
|
Zhang K, Liu XF, Zhang WZ, Ren WM, Lu XB. Electrocarboxylation of N-Acylimines with Carbon Dioxide: Access to Substituted α-Amino Acids. Org Lett 2022; 24:3565-3569. [DOI: 10.1021/acs.orglett.2c01267] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Ke Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, PR China
| | - Xiao-Fei Liu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, PR China
| | - Wen-Zhen Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, PR China
| | - Wei-Min Ren
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, PR China
| | - Xiao-Bing Lu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, PR China
| |
Collapse
|
9
|
Jin Y, Chen Q, Zhang Y, Lee Y, Kang D, Kim Y, Kim SJ, Su Z, Huang H, Kim KM. Remarkable enantioselectivity enhancement of the extractors with nonaxial chirality in liquid-liquid extraction of underivatized amino acids by introducing t-butyl group. Chirality 2022; 34:999-1007. [PMID: 35417058 DOI: 10.1002/chir.23449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 03/24/2022] [Accepted: 03/31/2022] [Indexed: 11/11/2022]
Abstract
A class of carbonyl extractors, (R)-3, (R)-4, and (R)-5, with nonaxial chirality containing asymmetric carbons has been synthesized and studied for their efficiencies in enantioselective liquid-liquid extraction for underivatized amino acids. The bulky t-butyl ketone extractors, (R)-4 and (R)-5, showed the stereoselectivities ranging 5.4-9.4 of l/d ratio much better than those of the aldehyde extractor, (R)-3, ranging 2.4-5.2. The imine formation rates and yields of the t-butyl ketones were not significantly affected by their bulkiness and even in the absence of resonance-assisted hydrogen bond. This work confirms that a bulky t-butyl ketone can be a good choice in the development of an extractor not only with axial chirality but also with nonaxial chirality for the enantioselective extraction of unprotected amino acids.
Collapse
Affiliation(s)
- Yingji Jin
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, Korea
| | - Qian Chen
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, Korea
| | - Yan Zhang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, China
| | - Yejeong Lee
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, Korea
| | - Dayoung Kang
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, Korea
| | - Youngmee Kim
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, Korea
| | - Sung-Jin Kim
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, Korea
| | - Zhishan Su
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, China
| | - Haofei Huang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, China
| | - Kwan Mook Kim
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, Korea
| |
Collapse
|
10
|
Yum JH, Sugiyama H, Park S. Harnessing DNA as a Designable Scaffold for Asymmetric Catalysis: Recent Advances and Future Perspectives. CHEM REC 2022; 22:e202100333. [PMID: 35312235 DOI: 10.1002/tcr.202100333] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 03/03/2022] [Accepted: 03/04/2022] [Indexed: 12/27/2022]
Abstract
Since the first report of DNAzyme by in vitro selection in 1994, catalytic DNA has investigated extensively, and their application has expanded continually in virtue of rapid advances in molecular biology and biotechnology. Nowadays, DNA is in the second prime time by way of DNA-based hybrid catalysts and DNA metalloenzymes in which helical chirality of DNA serves to asymmetric catalysis. DNA-based hybrid catalysts are attractive system to respond the demand of the times to pursuit green and sustainable society beyond traditional catalytic systems that value reaction efficiency. Herein, we highlight the recent advances and perspective of DNA-based hybrid catalysts with various aspects of DNA as a versatile scaffold for asymmetric synthesis. We hope that scientists in a variety of fields will be encouraged to join and promote remarkable evolution of this interesting research.
Collapse
Affiliation(s)
- Ji Hye Yum
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Hiroshi Sugiyama
- Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan.,Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Yoshida-ushinomiyacho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Soyoung Park
- Immunology Frontier Research Center (iFReC), Osaka University, 3-1 Yamadaoka, Suita, 565-0871, Japan.,Research Institute for Microbial Diseases (RIMD), Osaka University, 3-1 Yamadaoka, Suita, 565-0871, Japan
| |
Collapse
|
11
|
Nagata K, Nakagawa C, Yokoyama W, Usui H, Mochizuki R, Kanemitsu T, Miyazaki M, Itoh T. Synthesis and Catalytic Activities of 3-Decyl-β-proline for Michael Reactions in Water without an Organic Solvent. ACS OMEGA 2021; 6:19642-19646. [PMID: 34368551 PMCID: PMC8340436 DOI: 10.1021/acsomega.1c02289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 07/05/2021] [Indexed: 06/13/2023]
Abstract
3-Decyl-β-proline, which has a highly lipophilic substituent, was synthesized, and its catalytic activities in Michael addition using water as the solvent were investigated. The decyl substituent promoted the reaction by hydrophobic interactions to afford the Michael adduct in a high yield and with high diastereoselectivity under low catalyst loading.
Collapse
|
12
|
Design of Iridium N-Heterocyclic Carbene Amino Acid Catalysts for Asymmetric Transfer Hydrogenation of Aryl Ketones. Catalysts 2021. [DOI: 10.3390/catal11060671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A series of chiral complexes of the form Ir(NHC)2(aa)(H)(X) (NHC = N-heterocyclic carbene, aa = chelated amino acid, X = halide) was synthesized by oxidative addition of α-amino acids to iridium(I) bis-NHC compounds and screened for asymmetric transfer hydrogenation of ketones. Following optimization of the reaction conditions, NHC, and amino acid ligands, high enantioselectivity was achieved when employing the Ir(IMe)2(l-Pro)(H)(I) catalyst (IMe = 1,3-dimethylimidazol-2-ylidene), which asymmetrically reduces a range of acetophenone derivatives in up to 95% enantiomeric excess.
Collapse
|
13
|
Dai Y, Chen J, Wang Z, Wang T, Wang L, Yang Y, Qiao X, Fan B. Asymmetric Reduction of Aromatic α-Dehydroamino Acid Esters with Water as Hydrogen Source. J Org Chem 2021; 86:7141-7147. [PMID: 33966384 DOI: 10.1021/acs.joc.1c00426] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The asymmetric reduction of aromatic α-dehydroamino acid esters with water as the hydrogen source was developed by a Rh/Cu co-catalytic system. The reaction tolerates various functional groups, providing a valuable synthetic tool to access chiral α-amino acid esters readily. Moreover, the present methodology also was applied in the cost-effective and easy to handle preparation of chiral deuterated α-amino esters by using D2O.
Collapse
Affiliation(s)
- Yuze Dai
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming 650504, Yunnan, China
| | - Jingchao Chen
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming 650504, Yunnan, China
| | - Zheting Wang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming 650504, Yunnan, China
| | - Ting Wang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming 650504, Yunnan, China
| | - Lin Wang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming 650504, Yunnan, China
| | - Yong Yang
- Chongqing Key Laboratory of Traditional Chinese Medicine Health, Chongqing Accademy of Chinese Materia Medica, Chongqing 400065, China
| | - Xingfang Qiao
- Chongqing Key Laboratory of Traditional Chinese Medicine Health, Chongqing Accademy of Chinese Materia Medica, Chongqing 400065, China
| | - Baomin Fan
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming 650504, Yunnan, China.,Chongqing Key Laboratory of Traditional Chinese Medicine Health, Chongqing Accademy of Chinese Materia Medica, Chongqing 400065, China
| |
Collapse
|
14
|
Newar R, Akhtar N, Antil N, Kumar A, Shukla S, Begum W, Manna K. Amino Acid‐Functionalized Metal‐Organic Frameworks for Asymmetric Base–Metal Catalysis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Rajashree Newar
- Department of Chemistry Indian Institute of Technology Delhi Hauz Khas New Delhi 110016 India
| | - Naved Akhtar
- Department of Chemistry Indian Institute of Technology Delhi Hauz Khas New Delhi 110016 India
| | - Neha Antil
- Department of Chemistry Indian Institute of Technology Delhi Hauz Khas New Delhi 110016 India
| | - Ajay Kumar
- Department of Chemistry Indian Institute of Technology Delhi Hauz Khas New Delhi 110016 India
| | - Sakshi Shukla
- Department of Chemistry Indian Institute of Technology Delhi Hauz Khas New Delhi 110016 India
| | - Wahida Begum
- Department of Chemistry Indian Institute of Technology Delhi Hauz Khas New Delhi 110016 India
| | - Kuntal Manna
- Department of Chemistry Indian Institute of Technology Delhi Hauz Khas New Delhi 110016 India
| |
Collapse
|
15
|
Newar R, Akhtar N, Antil N, Kumar A, Shukla S, Begum W, Manna K. Amino Acid-Functionalized Metal-Organic Frameworks for Asymmetric Base-Metal Catalysis. Angew Chem Int Ed Engl 2021; 60:10964-10970. [PMID: 33539670 DOI: 10.1002/anie.202100643] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Indexed: 11/07/2022]
Abstract
We report a strategy to develop heterogeneous single-site enantioselective catalysts based on naturally occurring amino acids and earth-abundant metals for eco-friendly asymmetric catalysis. The grafting of amino acids within the pores of a metal-organic framework (MOF), followed by post-synthetic metalation with iron precursor, affords highly active and enantioselective (>99 % ee for 10 examples) catalysts for hydrosilylation and hydroboration of carbonyl compounds. Impressively, the MOF-Fe catalyst displayed high turnover numbers of up to 10 000 and was recycled and reused more than 15 times without diminishing the enantioselectivity. MOF-Fe displayed much higher activity and enantioselectivity than its homogeneous control catalyst, likely due to the formation of robust single-site catalyst in the MOF through site-isolation.
Collapse
Affiliation(s)
- Rajashree Newar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Naved Akhtar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Neha Antil
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Ajay Kumar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Sakshi Shukla
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Wahida Begum
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Kuntal Manna
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| |
Collapse
|
16
|
Fanjul-Mosteirín N, del Amo V. Organocatalytic transformations in deep eutectic solvents: Green methodologies made greener. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.131967] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
17
|
Domestici C, Tensi L, Boccalon E, Zaccaria F, Costantino F, Zuccaccia C, Macchioni A. Molecular and Heterogenized Cp*Ir Water Oxidation Catalysts Bearing Glyphosate and Glyphosine as Ancillary and Anchoring Ligands. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202001003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Chiara Domestici
- Department of Chemistry Biology and Biotechnology University of Perugia and CIRCC Via Elce di Sotto, 8 06123 Perugia Italy
| | - Leonardo Tensi
- Department of Chemistry Biology and Biotechnology University of Perugia and CIRCC Via Elce di Sotto, 8 06123 Perugia Italy
| | - Elisa Boccalon
- Department of Industrial Engineering University of Salerno Via Giovanni Paolo II, 132 84084 Fisciano SA Italy
| | - Francesco Zaccaria
- Department of Chemistry Biology and Biotechnology University of Perugia and CIRCC Via Elce di Sotto, 8 06123 Perugia Italy
| | - Ferdinando Costantino
- Department of Chemistry Biology and Biotechnology University of Perugia and CIRCC Via Elce di Sotto, 8 06123 Perugia Italy
| | - Cristiano Zuccaccia
- Department of Chemistry Biology and Biotechnology University of Perugia and CIRCC Via Elce di Sotto, 8 06123 Perugia Italy
| | - Alceo Macchioni
- Department of Chemistry Biology and Biotechnology University of Perugia and CIRCC Via Elce di Sotto, 8 06123 Perugia Italy
| |
Collapse
|
18
|
Alarcón‐Matus E, Alvarado C, Romero‐Ceronio N, Ramos‐Rivera EM, Lobato‐García CE. Proline‐derived Long‐aliphatic‐chain Amphiphilic Organocatalysts (PDLACAOs) for Asymmetric Reactions in Aqueous Media. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000419] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Erika Alarcón‐Matus
- División Académica de Ciencias Básicas Universidad Juárez Autónoma de Tabasco Carretera Cunduacán-Jalpa Km 1, Col. La Esperanza 86690 Cunduacán Tabasco México
| | - Cuauhtémoc Alvarado
- División Académica de Ciencias Básicas Universidad Juárez Autónoma de Tabasco Carretera Cunduacán-Jalpa Km 1, Col. La Esperanza 86690 Cunduacán Tabasco México
| | - Nancy Romero‐Ceronio
- División Académica de Ciencias Básicas Universidad Juárez Autónoma de Tabasco Carretera Cunduacán-Jalpa Km 1, Col. La Esperanza 86690 Cunduacán Tabasco México
| | - Erika M. Ramos‐Rivera
- División Académica de Ciencias Básicas Universidad Juárez Autónoma de Tabasco Carretera Cunduacán-Jalpa Km 1, Col. La Esperanza 86690 Cunduacán Tabasco México
| | - Carlos E. Lobato‐García
- División Académica de Ciencias Básicas Universidad Juárez Autónoma de Tabasco Carretera Cunduacán-Jalpa Km 1, Col. La Esperanza 86690 Cunduacán Tabasco México
| |
Collapse
|
19
|
Wang C, Qi Q, Li W, Dang J, Hao M, Lv S, Dong X, Gu Y, Wu P, Zhang W, Chen Y, Hartig JS. A Cu(II)-ATP complex efficiently catalyses enantioselective Diels-Alder reactions. Nat Commun 2020; 11:4792. [PMID: 32963238 PMCID: PMC7508818 DOI: 10.1038/s41467-020-18554-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 08/26/2020] [Indexed: 11/09/2022] Open
Abstract
Natural biomolecules have been used extensively as chiral scaffolds that bind/surround metal complexes to achieve stereoselectivity in catalytic reactions. ATP is ubiquitously found in nature as an energy-storing molecule and can complex diverse metal cations. However, in biotic reactions ATP-metal complexes are thought to function mostly as co-substrates undergoing phosphoanhydride bond cleavage reactions rather than participating in catalytic mechanisms. Here, we report that a specific Cu(II)-ATP complex (Cu2+·ATP) efficiently catalyses Diels-Alder reactions with high reactivity and enantioselectivity. We investigate the substrates and stereoselectivity of the reaction, characterise the catalyst by a range of physicochemical experiments and propose the reaction mechanism based on density functional theory (DFT) calculations. It is found that three key residues (N7, β-phosphate and γ-phosphate) in ATP are important for the efficient catalytic activity and stereocontrol via complexation of the Cu(II) ion. In addition to the potential technological uses, these findings could have general implications for the chemical selection of complex mixtures in prebiotic scenarios.
Collapse
Affiliation(s)
- Changhao Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, China.
| | - Qianqian Qi
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | - Wenying Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | - Jingshuang Dang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | - Min Hao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | - Shuting Lv
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | - Xingchen Dong
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | - Youkun Gu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | - Peizhe Wu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | - Wenyue Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | - Yashao Chen
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | - Jörg S Hartig
- Department of Chemistry and Konstanz Research School Chemical Biology (KoRS-CB), University of Konstanz, Konstanz, Germany
| |
Collapse
|
20
|
Auria-Luna F, Fernández-Moreira V, Marqués-López E, Gimeno MC, Herrera RP. Ultrasound-assisted multicomponent synthesis of 4H-pyrans in water and DNA binding studies. Sci Rep 2020; 10:11594. [PMID: 32665694 PMCID: PMC7360557 DOI: 10.1038/s41598-020-68076-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 06/18/2020] [Indexed: 12/21/2022] Open
Abstract
A simple approach to synthesize new highly substituted 4H-pyran derivatives is described. Efficient Et3N acts as a readily accessible catalyst of this process performed in pure water and with only a 20 mol% of catalyst loading. The extremely simple operational methodology, short reaction times, clean procedure and excellent product yields render this new approach extremely appealing for the synthesis of 4H-pyrans, as potentially biological scaffolds. Additionally, DNA interaction analysis reveals that 4H-pyran derivatives behave preferably as minor groove binders over major groove or intercalators. Therefore, this is one of the scarce examples where pyrans have resulted to be interesting DNA binders with high binding constants (Kb ranges from 1.53 × 104 M-1 to 2.05 × 106 M-1).
Collapse
Affiliation(s)
- Fernando Auria-Luna
- Departamento de Química Orgánica, Laboratorio de Organocatálisis Asimétrica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, C/ Pedro Cerbuna, Nº12, 50009, Zaragoza, Spain
| | - Vanesa Fernández-Moreira
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, C/ Pedro Cerbuna, Nº12, 50009, Zaragoza, Spain
| | - Eugenia Marqués-López
- Departamento de Química Orgánica, Laboratorio de Organocatálisis Asimétrica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, C/ Pedro Cerbuna, Nº12, 50009, Zaragoza, Spain
| | - M Concepción Gimeno
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, C/ Pedro Cerbuna, Nº12, 50009, Zaragoza, Spain
| | - Raquel P Herrera
- Departamento de Química Orgánica, Laboratorio de Organocatálisis Asimétrica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, C/ Pedro Cerbuna, Nº12, 50009, Zaragoza, Spain.
| |
Collapse
|
21
|
Cui X, Li W, Junge K, Fei Z, Beller M, Dyson PJ. Selective Acceptorless Dehydrogenation of Primary Amines to Imines by Core–Shell Cobalt Nanoparticles. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915526] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Xinjiang Cui
- Institute of Chemical Sciences and EngineeringÉcole Polytechnique Fedérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Wu Li
- Leibniz-Institute for Catalysis Albert Einstein Str. 29a 18059 Rostock Germany
| | - Kathrin Junge
- Leibniz-Institute for Catalysis Albert Einstein Str. 29a 18059 Rostock Germany
| | - Zhaofu Fei
- Institute of Chemical Sciences and EngineeringÉcole Polytechnique Fedérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| | - Matthias Beller
- Leibniz-Institute for Catalysis Albert Einstein Str. 29a 18059 Rostock Germany
| | - Paul J. Dyson
- Institute of Chemical Sciences and EngineeringÉcole Polytechnique Fedérale de Lausanne (EPFL) 1015 Lausanne Switzerland
| |
Collapse
|
22
|
Cui X, Li W, Junge K, Fei Z, Beller M, Dyson PJ. Selective Acceptorless Dehydrogenation of Primary Amines to Imines by Core-Shell Cobalt Nanoparticles. Angew Chem Int Ed Engl 2020; 59:7501-7507. [PMID: 32049401 PMCID: PMC7217016 DOI: 10.1002/anie.201915526] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/16/2020] [Indexed: 01/25/2023]
Abstract
Core–shell nanocatalysts are attractive due to their versatility and stability. Here, we describe cobalt nanoparticles encapsulated within graphitic shells prepared via the pyrolysis of a cationic poly‐ionic liquid (PIL) with a cobalt(II) chloride anion. The resulting material has a core–shell structure that displays excellent activity and selectivity in the self‐dehydrogenation and hetero‐dehydrogenation of primary amines to their corresponding imines. Furthermore, the catalyst exhibits excellent activity in the synthesis of secondary imines from substrates with various reducible functional groups (C=C, C≡C and C≡N) and amino acid derivatives.
Collapse
Affiliation(s)
- Xinjiang Cui
- Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL), 1015, Lausanne, Switzerland
| | - Wu Li
- Leibniz-Institute for Catalysis, Albert Einstein Str. 29a, 18059, Rostock, Germany
| | - Kathrin Junge
- Leibniz-Institute for Catalysis, Albert Einstein Str. 29a, 18059, Rostock, Germany
| | - Zhaofu Fei
- Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL), 1015, Lausanne, Switzerland
| | - Matthias Beller
- Leibniz-Institute for Catalysis, Albert Einstein Str. 29a, 18059, Rostock, Germany
| | - Paul J Dyson
- Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL), 1015, Lausanne, Switzerland
| |
Collapse
|
23
|
Frenkel-Pinter M, Samanta M, Ashkenasy G, Leman LJ. Prebiotic Peptides: Molecular Hubs in the Origin of Life. Chem Rev 2020; 120:4707-4765. [PMID: 32101414 DOI: 10.1021/acs.chemrev.9b00664] [Citation(s) in RCA: 148] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The fundamental roles that peptides and proteins play in today's biology makes it almost indisputable that peptides were key players in the origin of life. Insofar as it is appropriate to extrapolate back from extant biology to the prebiotic world, one must acknowledge the critical importance that interconnected molecular networks, likely with peptides as key components, would have played in life's origin. In this review, we summarize chemical processes involving peptides that could have contributed to early chemical evolution, with an emphasis on molecular interactions between peptides and other classes of organic molecules. We first summarize mechanisms by which amino acids and similar building blocks could have been produced and elaborated into proto-peptides. Next, non-covalent interactions of peptides with other peptides as well as with nucleic acids, lipids, carbohydrates, metal ions, and aromatic molecules are discussed in relation to the possible roles of such interactions in chemical evolution of structure and function. Finally, we describe research involving structural alternatives to peptides and covalent adducts between amino acids/peptides and other classes of molecules. We propose that ample future breakthroughs in origin-of-life chemistry will stem from investigations of interconnected chemical systems in which synergistic interactions between different classes of molecules emerge.
Collapse
Affiliation(s)
- Moran Frenkel-Pinter
- NSF/NASA Center for Chemical Evolution, https://centerforchemicalevolution.com/.,School of Chemistry & Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Mousumi Samanta
- Department of Chemistry, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Gonen Ashkenasy
- Department of Chemistry, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Luke J Leman
- NSF/NASA Center for Chemical Evolution, https://centerforchemicalevolution.com/.,Department of Chemistry, The Scripps Research Institute, La Jolla, California 92037, United States
| |
Collapse
|
24
|
Ji J, Chen C, Jia AQ, Shi HT, Zhang QF. Syntheses, structures and photocatalytic properties of ruthenium complexes bearing L-methionine ligands. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2019.121078] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
25
|
Chen Z, Hu F, Huang S, Zhao Z, Mao H, Qin W. Organocatalytic Enantioselective Selenosulfonylation of a C–C Double Bond To Form Two Stereogenic Centers in an Aqueous Medium. J Org Chem 2019; 84:8100-8111. [DOI: 10.1021/acs.joc.9b00973] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | - Hui Mao
- Pharmaceutical and Material Engineering School, Jinhua Polytechnic, Jinhua, Zhejiang Province 321000, P. R. China
| | | |
Collapse
|
26
|
Yang X, Wang Y, Qi W, Yang B, Liu X, Zhang L, Liu J, Su R, He Z. Construction of Supramolecular Nanostructures with High Catalytic Activity by Photoinduced Hierarchical Co‐Assembly. Chemistry 2019; 25:7896-7902. [DOI: 10.1002/chem.201900335] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Indexed: 01/08/2023]
Affiliation(s)
- Xuejiao Yang
- State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin University Tianjin 300072 P. R. China
| | - Yuefei Wang
- State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin University Tianjin 300072 P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination TechnologyTianjin University Tianjin 300072 P. R. China
| | - Wei Qi
- State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin University Tianjin 300072 P. R. China
- Collaborative Innovation Center of Chemical Science, and Engineering (Tianjin) Tianjin 300072 P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination TechnologyTianjin University Tianjin 300072 P. R. China
| | - Bohao Yang
- State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin University Tianjin 300072 P. R. China
| | - Xiao Liu
- State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin University Tianjin 300072 P. R. China
| | - Lei Zhang
- State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin University Tianjin 300072 P. R. China
| | - Jiangyue Liu
- State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin University Tianjin 300072 P. R. China
| | - Rongxin Su
- State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin University Tianjin 300072 P. R. China
- Collaborative Innovation Center of Chemical Science, and Engineering (Tianjin) Tianjin 300072 P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination TechnologyTianjin University Tianjin 300072 P. R. China
| | - Zhimin He
- State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin University Tianjin 300072 P. R. China
| |
Collapse
|
27
|
Cheraghipoor M, Maghsoodlou MT, Faghihi MR. A Green, Novel and Efficient Protocol for the Preparation of Diverse 4 H-Pyrans: The First Report on the Catalytic Activity of Water Extract of Elaeagnus angustifolia Leaves in Organic Reactions. Polycycl Aromat Compd 2019. [DOI: 10.1080/10406638.2018.1557710] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Marzieh Cheraghipoor
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran
| | - Malek Taher Maghsoodlou
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran
| | - Mohammad Reza Faghihi
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran
| |
Collapse
|
28
|
Ganji S, Bukya P, Liu ZW, Rao KSR, Burri DR. A carboxylic acid functionalized SBA-15 supported Pd nanocatalyst: an efficient catalyst for hydrogenation of nitrobenzene to aniline in water. NEW J CHEM 2019. [DOI: 10.1039/c9nj01743g] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The catalytic performance of a PdNPs/SBA-COOH has been investigated for the first time in the selective hydrogenation of nitrobenzene with hydrous hydrazine at RT in water medium.
Collapse
Affiliation(s)
- Saidulu Ganji
- Catalysis Laboratory
- Indian Institute of Chemical Technology
- Hyderabad-500607
- India
- Key Laboratory of Applied Surface and Colloid Chemistry (MOE)
| | - Padma Bukya
- University Post Graduate College
- Osmania University
- Secunderabad
- India
| | - Zhong-Wen Liu
- Key Laboratory of Applied Surface and Colloid Chemistry (MOE)
- School of Chemistry & Chemical Engineering
- Shaanxi Normal University
- Xi’an 710062
- China
| | | | - David Raju Burri
- Catalysis Laboratory
- Indian Institute of Chemical Technology
- Hyderabad-500607
- India
| |
Collapse
|
29
|
Konda S, Jakkampudi S, Arman HD, Zhao JCG. Enantioselective synthesis of spiro[ 4H-pyran-3,3'-oxindole] derivatives catalyzed by cinchona alkaloid thioureas: Significant water effects on the enantioselectivity. SYNTHETIC COMMUN 2019; 49:2971-2982. [PMID: 33012850 DOI: 10.1080/00397911.2019.1651866] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
An efficient stereoselective three-component reaction for the synthesis of functionalized spiro[4H-pyran-3,3'-oxindole] derivatives was realized through an organocatalyzed domino Knoevenagel/Michael/cyclization reaction using a cinchonidine-derived thiourea as the catalyst. Using water as the additive was found to improve the product ee values significantly. Under the optimized conditions, the reactions between isatins, malononitrile, and 1,3-dicarbonyl compounds yield the desired spirooxindole products in good yields (71-92%) and moderate to high ee values (up to 87% ee).
Collapse
Affiliation(s)
- Swapna Konda
- Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249-0698, USA
| | - Satish Jakkampudi
- Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249-0698, USA
| | - Hadi D Arman
- Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249-0698, USA
| | - John C-G Zhao
- Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249-0698, USA
| |
Collapse
|
30
|
Sheeba MM, Tamizh MM, Bhuvanesh NS, Karvembu R. Water soluble Ru (II)–
p
‐cymene complexes of chiral aroylthiourea ligands derived from unprotected D/L‐alanine as proficient catalysts for asymmetric transfer hydrogenation of ketones. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4667] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mani Mary Sheeba
- Department of ChemistryNational Institute of Technology Tiruchirappalli 620 015 India
| | - Manoharan Muthu Tamizh
- Department of ChemistrySiddha Central Research Institute, Central Council for Research in Siddha Arumbakkam Chennai 600 106 India
| | | | - Ramasamy Karvembu
- Department of ChemistryNational Institute of Technology Tiruchirappalli 620 015 India
| |
Collapse
|
31
|
Biancalana L, Abdalghani I, Chiellini F, Zacchini S, Pampaloni G, Crucianelli M, Marchetti F. Ruthenium Arene Complexes with α-Aminoacidato Ligands: New Insights into Transfer Hydrogenation Reactions and Cytotoxic Behaviour. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800284] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Lorenzo Biancalana
- Department of Chemistry and Industrial Chemistry; University of Pisa; Via Moruzzi 13 56124 Pisa Italy
- CIRCC; Via Celso Ulpiani 27 70126 Bari Italy
| | - Issam Abdalghani
- Department of Physical and Chemical Sciences; University of L'Aquila; Via Vetoio 67100 L'Aquila Italy
| | - Federica Chiellini
- Department of Chemistry and Industrial Chemistry; University of Pisa; Via Moruzzi 13 56124 Pisa Italy
| | - Stefano Zacchini
- Department of Industrial Chemistry “Toso Montanari”; University of Bologna; Viale Risorgimento 4 40136 Bologna Italy
- CIRCC; Via Celso Ulpiani 27 70126 Bari Italy
| | - Guido Pampaloni
- Department of Chemistry and Industrial Chemistry; University of Pisa; Via Moruzzi 13 56124 Pisa Italy
- CIRCC; Via Celso Ulpiani 27 70126 Bari Italy
| | - Marcello Crucianelli
- Department of Physical and Chemical Sciences; University of L'Aquila; Via Vetoio 67100 L'Aquila Italy
| | - Fabio Marchetti
- Department of Chemistry and Industrial Chemistry; University of Pisa; Via Moruzzi 13 56124 Pisa Italy
- CIRCC; Via Celso Ulpiani 27 70126 Bari Italy
| |
Collapse
|
32
|
Yan J, Sun R, Shi K, Li K, Yang L, Zhong G. N-Heterocyclic Carbene-Catalyzed Asymmetric Benzoin Reaction in Water. J Org Chem 2018; 83:7547-7552. [DOI: 10.1021/acs.joc.8b00481] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jun Yan
- College of Materials, Chemistry & Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Rong Sun
- College of Materials, Chemistry & Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Kuangxi Shi
- College of Materials, Chemistry & Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Kai Li
- College of Materials, Chemistry & Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Limin Yang
- College of Materials, Chemistry & Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Guofu Zhong
- College of Materials, Chemistry & Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| |
Collapse
|
33
|
Ferrari Bach M, Herzer Griebeler C, Gross Jacoby C, Schneider PH. Design of a Chiral Ionic Liquid System for the Enantioselective Addition of Diethylzinc to Aldehydes. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701426] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mariana Ferrari Bach
- Instituto de Química; Universidade Federal do Rio Grande do Sul; P. O. Box 15003 91501-970 Porto Alegre-RS Brazil
| | - Cassiana Herzer Griebeler
- Instituto de Química; Universidade Federal do Rio Grande do Sul; P. O. Box 15003 91501-970 Porto Alegre-RS Brazil
| | - Caroline Gross Jacoby
- Instituto de Química; Universidade Federal do Rio Grande do Sul; P. O. Box 15003 91501-970 Porto Alegre-RS Brazil
| | - Paulo Henrique Schneider
- Instituto de Química; Universidade Federal do Rio Grande do Sul; P. O. Box 15003 91501-970 Porto Alegre-RS Brazil
| |
Collapse
|
34
|
Park Y, Niemeyer ZL, Yu JQ, Sigman MS. Quantifying Structural Effects of Amino Acid Ligands in Pd(II)-Catalyzed Enantioselective C–H Functionalization Reactions. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00751] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yoonsu Park
- Department
of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center
for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Zachary L. Niemeyer
- Department
of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Jin-Quan Yu
- Department
of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Matthew S. Sigman
- Department
of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| |
Collapse
|
35
|
Biancalana L, Tuci G, Piccinelli F, Marchetti F, Bortoluzzi M, Pampaloni G. Vanadium(v) oxoanions in basic water solution: a simple oxidative system for the one pot selective conversion of l-proline to pyrroline-2-carboxylate. Dalton Trans 2017; 46:15059-15069. [PMID: 29063086 DOI: 10.1039/c7dt02702h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The unprecedented, direct chemical oxidation of l-proline to pyrroline-2-carboxylate was achieved in water (pH 9-10) by means of NH4VO3/NH3 or V2O5/MOH (K = Na, K), and the anion was fully characterized as ammonium or alkaline metal salts. Quantitative yield and higher atom economy performance were achieved with the latter system, the alkaline salts being more stable than the ammonium one. Different mixed valence V(iv)/V(v) compounds precipitated from the reaction mixtures depending on the nature of the employed base. A possible reaction mechanism is proposed according to DFT calculations. The analogous reaction of trans-4-hydroxy-l-proline with NH4VO3/NH3 afforded pyrrole-2-carboxylic acid in 81% yield, while sarcosine underwent prevalent decomposition under similar experimental conditions. Instead, no reaction was observed with primary (glycine, l-alanine, l-phenylalanine) and tertiary α-amino acids (N,N-dimethyl-l-phenylalanine, N,N-dimethylglycine).
Collapse
Affiliation(s)
- Lorenzo Biancalana
- University of Pisa, Dipartimento di Chimica e Chimica Industriale, Via G. Moruzzi 13, I-56124 Pisa, Italy.
| | | | | | | | | | | |
Collapse
|
36
|
Golandaj A, Ahmad A, Ramjugernath D. Phosphonium Salts in Asymmetric Catalysis: A Journey in a Decade's Extensive Research Work. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700795] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Ajij Golandaj
- Thermodynamics Research Unit, School of Chemical Engineering; University of KwaZulu-Natal; Howard College Campus, Private Bag X54001 Durban 4041 Republic of South Africa
| | - Akil Ahmad
- Thermodynamics Research Unit, School of Chemical Engineering; University of KwaZulu-Natal; Howard College Campus, Private Bag X54001 Durban 4041 Republic of South Africa
| | - Deresh Ramjugernath
- Thermodynamics Research Unit, School of Chemical Engineering; University of KwaZulu-Natal; Howard College Campus, Private Bag X54001 Durban 4041 Republic of South Africa
| |
Collapse
|
37
|
Mandal T, Kuo W, Su M, Bhowmick K, Zhao JCG. Prolinal dithioacetals: Highly efficient organocatalysts for the direct nitro-Michael additions in both organic and aqueous media. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.10.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
38
|
Magnetic nanoparticles grafted l-carnosine dipeptide: remarkable catalytic activity in water at room temperature. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2017. [DOI: 10.1007/s13738-017-1157-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
39
|
Heredia A, Colín-García M, Puig TPI, Alba-Aldave L, Meléndez A, Cruz-Castañeda JA, Basiuk VA, Ramos-Bernal S, Mendoza AN. Computer simulation and experimental self-assembly of irradiated glycine amino acid under magnetic fields: Its possible significance in prebiotic chemistry. Biosystems 2017; 162:66-74. [PMID: 28851657 DOI: 10.1016/j.biosystems.2017.08.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 07/18/2017] [Accepted: 08/21/2017] [Indexed: 10/19/2022]
Abstract
Ionizing radiation may have played a relevant role in chemical reactions for prebiotic biomolecule formation on ancient Earth. Environmental conditions such as the presence of water and magnetic fields were possibly relevant in the formation of organic compounds such as amino acids. ATR-FTIR, Raman, EPR and X-ray spectroscopies provide valuable information about molecular organization of different glycine polymorphs under static magnetic fields. γ-glycine polymorph formation increases in irradiated samples interacting with static magnetic fields. The increase in γ-glycine polymorph agrees with the computer simulations. The AM1 semi-empirical simulations show a change in the catalyst behavior and dipole moment values in α and γ-glycine interaction with the static magnetic field. The simulated crystal lattice energy in α-glycine is also affected by the free radicals under the magnetic field, which decreases its stability. Therefore, solid α and γ-glycine containing free radicals under static magnetic fields might have affected the prebiotic scenario on ancient Earth by causing the oligomerization of glycine in prebiotic reactions.
Collapse
Affiliation(s)
- Alejandro Heredia
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito Exterior S/N, Coyoacán, C.P. 04510 Ciudad de México, D.F, Mexico.
| | - María Colín-García
- Instituto de Geología, Universidad Nacional Autónoma de México, Instituto de Geología, Ciudad Universitaria, Circuito Exterior S/N, Coyoacán, C.P. 04510 Ciudad de México, D.F, Mexico
| | - Teresa Pi I Puig
- Instituto de Geología, Universidad Nacional Autónoma de México, Instituto de Geología, Ciudad Universitaria, Circuito Exterior S/N, Coyoacán, C.P. 04510 Ciudad de México, D.F, Mexico
| | - Leticia Alba-Aldave
- Instituto de Geología, Universidad Nacional Autónoma de México, Instituto de Geología, Ciudad Universitaria, Circuito Exterior S/N, Coyoacán, C.P. 04510 Ciudad de México, D.F, Mexico
| | - Adriana Meléndez
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito Exterior S/N, Coyoacán, C.P. 04510 Ciudad de México, D.F, Mexico; Posgrado en Ciencias Químicas, Universidad Nacional Autónoma de México, Mexico
| | - Jorge A Cruz-Castañeda
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito Exterior S/N, Coyoacán, C.P. 04510 Ciudad de México, D.F, Mexico; Posgrado en Ciencias Químicas, Universidad Nacional Autónoma de México, Mexico
| | - Vladimir A Basiuk
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito Exterior S/N, Coyoacán, C.P. 04510 Ciudad de México, D.F, Mexico
| | - Sergio Ramos-Bernal
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito Exterior S/N, Coyoacán, C.P. 04510 Ciudad de México, D.F, Mexico
| | - Alicia Negrón Mendoza
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Ciudad Universitaria, Circuito Exterior S/N, Coyoacán, C.P. 04510 Ciudad de México, D.F, Mexico
| |
Collapse
|
40
|
Wujkowska Z, Strojewska A, Pieczonka AM, Leśniak S, Rachwalski M. Highly enantioselective asymmetric direct aldol reaction promoted by aziridine amides constructed on chiral terpene scaffold. Chirality 2017; 29:213-220. [DOI: 10.1002/chir.22698] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 11/22/2016] [Accepted: 02/02/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Zuzanna Wujkowska
- Department of Organic and Applied Chemistry; University of Łódź; Łódź Poland
| | | | - Adam M. Pieczonka
- Department of Organic and Applied Chemistry; University of Łódź; Łódź Poland
| | - Stanisław Leśniak
- Department of Organic and Applied Chemistry; University of Łódź; Łódź Poland
| | - Michał Rachwalski
- Department of Organic and Applied Chemistry; University of Łódź; Łódź Poland
| |
Collapse
|
41
|
Ortiz R, Herrera RP. Direct Substitution of Alcohols in Pure Water by Brønsted Acid Catalysis. Molecules 2017; 22:molecules22040574. [PMID: 28368309 PMCID: PMC6154297 DOI: 10.3390/molecules22040574] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 03/29/2017] [Accepted: 03/30/2017] [Indexed: 11/16/2022] Open
Abstract
With the increasing concern for sustainability, the use of environmentally friendly media to perform chemical processes has attracted the attention of many research groups. Among them, the use of water, as the unique solvent for reactions, is currently an active area of research. One process of particular interest is the direct nucleophilic substitution of an alcohol avoiding its preliminary transformation into a good leaving group, since one of the by-products in this approach would be water. The direct substitution of allylic, benzylic, and tertiary alcohols has been achieved through SN1-type reactions with catalytic amounts of Brønsted or Lewis acids; however, organic solvents are often required. In this review, the pioneering SN1 approaches performed in pure water and in the absence of a metal based Lewis acid are compiled and discussed.
Collapse
Affiliation(s)
- Rosa Ortiz
- Laboratorio de Organocatálisis Asimétrica, Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) CSIC-Universidad de Zaragoza, C/Pedro Cerbuna 12, Zaragoza 50009, Spain.
| | - Raquel P Herrera
- Laboratorio de Organocatálisis Asimétrica, Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) CSIC-Universidad de Zaragoza, C/Pedro Cerbuna 12, Zaragoza 50009, Spain.
| |
Collapse
|
42
|
Veverková E, Modrocká V, Šebesta R. Organocatalyst Efficiency in the α-Aminoxylation and α-Hydrazination of Carbonyl Derivatives in Aqueous Media or in a Ball-Mill. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601357] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Eva Veverková
- Department of Organic Chemistry; Faculty of Natural Sciences; Comenius University in Bratislava; Mlynska dolina, Ilkovicova 6 84215 Bratislava Slovakia
| | - Viktória Modrocká
- Department of Organic Chemistry; Faculty of Natural Sciences; Comenius University in Bratislava; Mlynska dolina, Ilkovicova 6 84215 Bratislava Slovakia
| | - Radovan Šebesta
- Department of Organic Chemistry; Faculty of Natural Sciences; Comenius University in Bratislava; Mlynska dolina, Ilkovicova 6 84215 Bratislava Slovakia
| |
Collapse
|
43
|
Carmona M, Rodríguez R, Lahoz FJ, García-Orduña P, Cativiela C, López JA, Carmona D. Half-sandwich complexes of iridium and ruthenium containing cysteine-derived ligands. Dalton Trans 2017; 46:962-976. [PMID: 28009875 DOI: 10.1039/c6dt04341k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The dimers [{(ηn-ring)MCl}2(μ-Cl)2] ((ηn-ring)M = (η5-C5Me5)Ir, (η6-p-MeC6H4iPr)Ru) react with the modified cysteines S-benzyl-l-cysteine (HL1) or S-benzyl-α-methyl-l-cysteine (HL2) affording cationic complexes of the formula [(ηn-ring)MCl(κ2N,S-HL)]Cl (1, 2) in good yield. Addition of NaHCO3 to complexes 1 and 2 gave equilibrium mixtures of neutral [(ηn-ring)MCl(κ2N,O-L)] (3, 4) and cationic [(ηn-ring)M(κ3N,O,S-L)]Cl (6Cl, 7Cl) complexes. Similar mixtures were obtained in one-pot reaction by successive addition of the modified cysteine and NaHCO3 to the above formulated dimers. Addition of the N-Boc substituted cysteine derivative S-benzyl-N-Boc-l-cysteine (HL3) and NaHCO3 to the dimers [{(ηn-ring)MCl}2(μ-Cl)2] affords the neutral compounds [(ηn-ring)MCl(κ2O,S-L3)] ((ηn-ring)M = (η5-C5Me5)Ir (5a), (η6-p-MeC6H4iPr)Ru (5b)). Complexes of the formula [(ηn-ring)MCl(κ3N,O,S-L)][SbF6] (6Sb-8Sb), in which the cysteine derivative acts as a tridentate chelate ligand, can be prepared by adding one equivalent of AgSbF6 to the solutions of compounds 5 or to the mixtures of complexes 3/6Cl and 4/7Cl. The amide proton of compounds 8aSb and 8bSb can be removed by addition of NaHCO3 affording the neutral complexes [(ηn-ring)M(κ3N,O,S-L3-H)] ((ηn-ring)M = (η5-C5Me5)Ir (9a), (η6-p-MeC6H4iPr)Ru (9b)). Complexes 9a and 9b can also be prepared by reacting the dimers [{(ηn-ring)MCl}2(μ-Cl)2] with HL3 and two equivalents of NaHCO3. The absolute configuration of the complexes has been established by spectroscopic and diffractometric means including the crystal structure determination of (RIr,RC,RS)-[(η5-C5Me5)Ir(κ3N,O,S-L1)][SbF6] (6aSb). The thermodynamic parameters associated with the epimerization at sulphur that the iridium compound [(η5-C5Me5)Ir(κ3N,O,S-L3-H)] (9a) undergoes have been determined through variable temperature 1H NMR studies.
Collapse
Affiliation(s)
- María Carmona
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Departamento de Química Inorgánica, Pedro Cerbuna 12, 50009 Zaragoza, Spain.
| | - Ricardo Rodríguez
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Departamento de Química Inorgánica, Pedro Cerbuna 12, 50009 Zaragoza, Spain.
| | - Fernando J Lahoz
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Departamento de Química Inorgánica, Pedro Cerbuna 12, 50009 Zaragoza, Spain.
| | - Pilar García-Orduña
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Departamento de Química Inorgánica, Pedro Cerbuna 12, 50009 Zaragoza, Spain.
| | - Carlos Cativiela
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Departamento de Química Orgánica, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - José A López
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Departamento de Química Inorgánica, Pedro Cerbuna 12, 50009 Zaragoza, Spain.
| | - Daniel Carmona
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Departamento de Química Inorgánica, Pedro Cerbuna 12, 50009 Zaragoza, Spain.
| |
Collapse
|
44
|
Biancalana L, Bortoluzzi M, Ferretti E, Hayatifar M, Marchetti F, Pampaloni G, Zacchini S. The reactions of α-amino acids and α-amino acid esters with high valent transition metal halides: synthesis of coordination complexes, activation processes and stabilization of α-ammonium acylchloride cations. RSC Adv 2017. [DOI: 10.1039/c7ra00073a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
We describe the synthesis of rare coordination compounds of early transition metals with α-amino acids and α-amino acid esters, the unusual C–C dimerization ofl-proline, and the stabilization of reactive α-ammonium acylchloride cations.
Collapse
Affiliation(s)
- Lorenzo Biancalana
- University of Pisa
- Dipartimento di Chimica e Chimica Industriale
- I-56124 Pisa
- Italy
| | - Marco Bortoluzzi
- Ca' Foscari University of Venice
- Dipartimento di Scienze Molecolari e Nanosistemi
- I-30175 Mestre
- Italy
| | - Eleonora Ferretti
- University of Pisa
- Dipartimento di Chimica e Chimica Industriale
- I-56124 Pisa
- Italy
| | - Mohammad Hayatifar
- University of Pisa
- Dipartimento di Chimica e Chimica Industriale
- I-56124 Pisa
- Italy
| | - Fabio Marchetti
- University of Pisa
- Dipartimento di Chimica e Chimica Industriale
- I-56124 Pisa
- Italy
| | - Guido Pampaloni
- University of Pisa
- Dipartimento di Chimica e Chimica Industriale
- I-56124 Pisa
- Italy
| | - Stefano Zacchini
- University of Bologna
- Dipartimento di Chimica Industriale “Toso Montanari”
- I-40136 Bologna
- Italy
| |
Collapse
|
45
|
Sahin O, Eymur S, Uyanik A, Akceylan E, Yilmaz M. Chiral Calix[4]arenes-Bearing Prolinamide Functionality as Organocatalyst for Asymmetric Direct Aldol Reactions in Water. Polycycl Aromat Compd 2016. [DOI: 10.1080/10406638.2016.1176058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Ozlem Sahin
- Department of Chemistry, Selcuk University, Konya, Turkey
| | - Serkan Eymur
- Department of Energy Systems Engineering, Giresun University, Giresun, Turkey
| | - Arzu Uyanik
- Department of Chemistry, Selcuk University, Konya, Turkey
| | - Ezgi Akceylan
- Department of Chemistry, Selcuk University, Konya, Turkey
| | - Mustafa Yilmaz
- Department of Chemistry, Selcuk University, Konya, Turkey
| |
Collapse
|
46
|
Xue H, Tan CH, Wong MW. Guanidine-catalyzed asymmetric Strecker reaction: modes of activation and origin of stereoselectivity. CAN J CHEM 2016. [DOI: 10.1139/cjc-2016-0307] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Density functional theory calculations were employed to study the catalytic mechanism, modes of activation, and origin of enantioselectivity of guanidine-catalyzed asymmetric Strecker reaction of N-benzhydryl imine with hydrogen cyanide. Two types of bifunctional activation mode were identified, namely conventional bifunctional Brønsted acid activation and unconventional bifunctional Brønsted–Lewis acid activation. The lowest-energy transition states correspond to the conventional bifunctional mode of activation. The calculated enantiomeric excess, based on eight lowest-energy C–C bond forming transition states, is in good accord with observed enantioselectivity. NCI (noncovalent interaction) analysis of the key transition states reveals extensive noncovalent interactions, including aromatic interactions and hydrogen bonds, between the guanidinium catalyst and substrates. Multiple aryl–aryl interactions between the phenyl groups of guanidine catalyst and the phenyl rings of N-benzhydryl imine are the key stabilizations in the most stable (R)-inducing transition state. Differential attractive aryl–aryl stabilization is the major factor for stereoinduction.
Collapse
Affiliation(s)
- Hansong Xue
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Choon-Hong Tan
- Department of Chemistry and Biological Chemistry, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| | - Ming Wah Wong
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| |
Collapse
|
47
|
Afewerki S, Córdova A. Combinations of Aminocatalysts and Metal Catalysts: A Powerful Cooperative Approach in Selective Organic Synthesis. Chem Rev 2016; 116:13512-13570. [PMID: 27723291 DOI: 10.1021/acs.chemrev.6b00226] [Citation(s) in RCA: 322] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The cooperation and interplay between organic and metal catalyst systems is of utmost importance in nature and chemical synthesis. Here innovative and selective cooperative catalyst systems can be designed by combining two catalysts that complement rather than inhibit one another. This refined strategy can permit chemical transformations unmanageable by either of the catalysts alone. This review summarizes innovations and developments in selective organic synthesis that have used cooperative dual catalysis by combining simple aminocatalysts with metal catalysts. Considerable efforts have been devoted to this fruitful field. This emerging area employs the different activation modes of amine and metal catalysts as a platform to address challenging reactions. Here, aminocatalysis (e.g., enamine activation catalysis, iminium activation catalysis, single occupied molecular orbital (SOMO) activation catalysis, and photoredox activation catalysis) is employed to activate unreactive carbonyl substrates. The transition metal catalyst complements by activating a variety of substrates through a range of interactions (e.g., electrophilic π-allyl complex formation, Lewis acid activation, allenylidene complex formation, photoredox activation, C-H activation, etc.), and thereby novel concepts within catalysis are created. The inclusion of heterogeneous catalysis strategies allows for "green" chemistry development, catalyst recyclability, and the more eco-friendly synthesis of valuable compounds.
Collapse
Affiliation(s)
- Samson Afewerki
- Department of Natural Sciences, Mid Sweden University , SE-851 70 Sundsvall, Sweden.,Berzelii Center EXSELENT, The Arrhenius Laboratory, Stockholm University , SE-106 91 Stockholm, Sweden
| | - Armando Córdova
- Department of Natural Sciences, Mid Sweden University , SE-851 70 Sundsvall, Sweden.,Berzelii Center EXSELENT, The Arrhenius Laboratory, Stockholm University , SE-106 91 Stockholm, Sweden
| |
Collapse
|
48
|
Gurka AA, Szőri K, Bartók M, London G. Dual stereocontrol in aldol reactions catalysed by hydroxyproline derivatives in the presence of a large amount of water. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.tetasy.2016.08.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
49
|
Carrasco CJ, Montilla F, Galindo A. Molybdenum-catalyzed asymmetric sulfoxidation with hydrogen peroxide and subsequent kinetic resolution, using an imidazolium-based dicarboxylate compound as chiral inductor. CATAL COMMUN 2016. [DOI: 10.1016/j.catcom.2016.06.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
|
50
|
l-Cysteine-functionalized magnetic nanoparticles (LCMNP): as a magnetic reusable organocatalyst for one-pot synthesis of 9-(1H-indol-3-yl) xanthen-4-(9H)-ones. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2016. [DOI: 10.1007/s13738-016-0902-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|